Spyster is an Etherian villian who specializes in spying and reconnaissance. Hordak has used him as a spy-for-hire to gain intel on The Great Rebellion for The Evil Horde. He uses deception to trick others in order to carry out his devious plans.

Trivia: Spyster had one appearance in the She-Ra: Princess of Power cartoon series. He was featured in Episode 87 "The Inspector," along with returning Horde villain Inspector Darkney, who had a similar color pallete. His character design had been previously used by the characters Jarvan and Zim in the He-Man and the Masters of the Universe cartoon series. He was voiced by Alan Oppenheimer.